Advice please

I’ve been with my boyfriend for 9 years since we were 13 and long story short we’re having problems right now trust issues and arguementd and he just doesn’t see what he does wrong and I’m over it. I love him to death I’m in tears writing this right now but i feel like our relwtionship needs to end. He’s broken up with me before and for reasons that we’re never my fault it was because he wanted to go be single and be with other girls and each time he’s left i always cried and begged him to come home and put myself into depression trying to chase him and get him to come back and i don’t want to be that girl anymore he keeps telling me i act like a teenager and I’m crazy and I’m pushing him away but there’s so many problems i don’t even think their fixable or to many to fix there not major he’s not physically abusive he’s never laid hands on me but he’s just emotionally draining to me he’s always pointing out girls with big butts in front of me and telling me which girls are attractive. I’m just fed up and i want out but it’s really the hardest thing I’ve done i just need help and some wise words. We have two kids a 6 year old and a 7 month old so it’s a little harder